Square QED-2 - Anchoring the Switchboard; Through Bus Splice Connections; Figure 13

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Power-Style™ QED-2 Switchboards Section 4—Installation

ENGLISH

Anchoring the Switchboard

Although sections are freestanding, a hard bump or shifting movement can result in

damage to the splice joints between sections and conduit hubs connected to the

sections. Therefore, each individual section must be anchored to the floor.

Formed base channels run the width of the shipping section. The channels have

0.75 in. (19 mm) diameter clearance holes for fastening the section to the floor

(Figure 13). Anchor each section to the floor with hardware suitable for installation

of electrical equipment (not furnished).

After all switchboard sections are properly joined and the entire structure is anchored to

the floor, install the incoming service conductors and load side cables.

NOTE: If the switchboard consists of only one shipping section, proceed to

“Grounding and Bonding” on page 26.

Through Bus Splice Connections

Through bus splice connectors and/or hardware, along with installation

instructions, are provided with each shipping split. Follow the installation

instructions, and torque splice bolts to the value given in “Section 9—

Torque Values for Electrical Connections” on page 51.

If through bus bars are wrapped with an insulative material, cover the splice

connections with the material provided.

For splice connections with bus on the front and rear of an insulating tube, ensure

the U-shaped, copper connector is centered around the tube. Figure 14 on page 25

shows the proper orientation of the connector.

Figure 13 – Switchboard Base Channels

Switchboard frame

Secure the switchboard to the

mounting surface using the

holes closest to the surface.

Formed base channel

Mounting surface

0.75 in. (19 mm) diameter

clearance holes in each

corner for anchoring

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

Do not install through bus splice connectors with the switchboard energized.

Failure to follow these instructions will result in death or serious injury.

Square QED-2 - Anchoring the Switchboard; Through Bus Splice Connections; Figure 13 - Switchboard Base Channels